Seiko Cal. 4431 - 278

The Seiko 4431-278 represents an important milestone in Seiko's 1976 lineup. With its 20mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-4c3fd16e2429]

Also known as: Crown, Flighty

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Green

Jewels

36j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1976

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